The reason I didn't include Sableye in my list is because of it's crystaline nature, along with the fact that it lives off of eating crystals.

In my opinion, the most zombie-like Pokémon is Sableye. Its appearance, pose, and moveset all suggest that it is. I mean, Recover, Knock Off, Seismic Toss, Endure, Fury Swipes, Poison Jab, Sucker Punch, etc.